.w {
  width: 900px;
  margin: 0 auto;
}
body {
  width: 100%;
  font-family: '微软雅黑';
}
body .banner {
  width: 100%;
}
body .banner img {
  width: 100%;
  height: 100%;
  display: block;
}
body .context {
  width: 100%;
  background-color: #20d5c4;
  display: flex;
}
body .context .w {
  height: 100%;
  padding: 50px 0;
  color: #fff;
}
body .context .w h2 {
  font-size: 30px;
  margin-bottom: 15px;
}
body .context .w h3 {
  font-size: 30px;
  margin-top: 50px;
}
body .context .w h4 {
  font-size: 20px;
  margin-top: 20px;
}
body .context .w p {
  font-size: 16px;
  line-height: 24px;
  padding-left: 2em;
}
body .main {
  margin-bottom: 50px;
}
body .main .w {
  height: 100%;
  position: relative;
  padding: 30px 0;
}
body .main .w h2 {
  width: 100%;
  font-size: 18px;
  font-weight: normal;
  color: #20d5c4;
  border-bottom: 1px solid #20d5c4;
  display: flex;
  align-items: center;
  height: 48px;
  line-height: 48px;
}
body .main .w h2 span {
  width: 42px;
  text-align: center;
  height: 24px;
  line-height: 24px;
  font-size: 12px;
  color: #fff;
  background-color: #20d5c4;
  border-radius: 20px;
  display: block;
  margin-left: 15px;
}
body .main .w .container {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
body .main .w .container figure {
  width: 31%;
  margin: 30px 0 0;
  border-top: 1px solid #71cac2;
  border-left: 1px solid #71cac2;
  border-right: 1px solid #71cac2;
  display: flex;
  flex-wrap: wrap;
}
body .main .w .container figure img {
  width: 100%;
  height: 200px;
}
body .main .w .container figure figcaption {
  width: 100%;
  height: 60px;
  background-color: #71cac2;
  color: #fff;
  text-align: center;
  line-height: 60px;
  font-size: 14px;
}
